Adjustable delivery ink container for rotary duplicators



June 28 1927.

l L. L. LIEVENs ADJUSTABLE DELIVERY INK CONTAINER FOR ROTARY DUPLICATORS.

Filed Aufl. 23. 1926 llll l Patented June 28, 1927.

UNITED STATESV PATENT OFFICE.

LEON LOUIS LIEvENs, or NANTERRE, FRANCE, AssIGNoE To LA SOCIT DETUDES, CoNsTEUCTIoNs ET APPLICATIONS MECANIQUEs, or PARIS, yFRANCE.

ADJUSTABLE DELIVERY INK CONTAINER FOR ROTARY DUPLICATORS.

Application filed August-23, 1926, Serial' No. 131,049, and in France November 4, 1925.

In rotary duplicating machines usingv completely-closed printing rollers-thatl is to say, rollers devoid of any yaperture for ink introduction-ink containers have had to be 5 devised which can be fed and adjusted from outside said rollers; and it is a device of this kind which is about to be described and which is the object of the present invention.

In the accompanying drawing: Y

Figure 1 is a sectional view of the'improved ink container, showing its position within a printing cylinder or roller;

Fig. 2 represents the development ofthe fixed outer tube, showing the arrangement l5 of its several apertures; and Y Fig. 3 similarly represents the development of the rotatable inner or distributing tube, showing the arrangement of its several apertures.

: The invention is designed and operates in the following manner:

The outer tube 1 (Fig. 2), which constitutes a spindle or axle whereon the printing roller l2 is mounted, is extended at one end by an elbow 2 which is closed by a threaded plug 3 and through which the ink is admitted to the inner tube 4 that constitutes the container proper for the ink.

The aforesaid inner tube 4 is provided at l one of its ends with a knurled button 5 which has engraved on its periphery the following letters and numerals: F. R. 1, 2,

3, 4, 5, which letters and numerals can, on

tube 4 being rotated, be brought respectively opposite an arrow or pointer 6 fixed on the frame of the machine.

The letter R on the button corresponds to a vent or hole R formed in the top part of the wall of the inner tube 4, while the numbers on the button correspond to simlarly numbered longitudinal slots formed in ofi'- set relation to one another and to hole R in said tufbe Wall, as illustrated in Fig. 3; a similar hole and similar slots being provided in tube 1 except that the slots are arranged in line, as shown in Fig. 2.

In order to feed ink to the container, the plug 3 is removed, and tube 4 is rotated by means of its button 5 so as to bring letter R opposite pointer 6. In this position the ink container remains closed-that is to say, none of the slots in tube 1 register with the corresponding slot in tube 4, though the two vent holes R are in register; the purpose of this being to facilitate the ink flow and distribution throughout the whole length of the container. The container vis thenre-closed by means of plug 3.

For the first inking of the printing roller 12, it is merely necessary, with the aid of button5 and pointer 6, to bring selectively into registration the slots l, 2, 3, 4 and 5 in tube 4 with the corresponding slots in tube l. The How of ink may be facilitated by providing` in the top of plug 3 an 'aperture 7 adapted to vbe closed by a spring blade 8 maintained in place by a. screw 9; this arrangement preventing the necessity for plug 3 `being removed,

In the course of operatiom after suiicient inking hasy taken place, the container is closed by bringing letter F on the button 5, opposite pointer 6. Moreover, the button and pointer can be utilized during operation 4to bringy into registration one of the pairs of longitudinal slots 1, 2, 3, 4 and 5 in order to feed the ink at the precise place` Where such feeding is required, and this adjustment can, therefore, be done without interrupting the printing operation.

Tube 4 may be provided with a groove 10 to receive the tip of a screw 11 secured to tube 1, the purpose of which being to prevent accidental or careless withdrawal of tube 4.

Having now particularly ascertained and described the nature of my said invention as well as the manner in which the` same is to be performed, I declare that what I claim is:

1. An inking device, comprising a relatively-stationary outer tube whereon a printing roller is adapted to be mounted axially, a rotatable inner tube fitting concentrically within the outer tube; said inner tube having a series of longitudinal slots formed in its circumferential wall in successively-offset relation to one another, and said outer tube having a corresponding series of longitudinal slots of the same length as the firstnamed slots formed in .its circumferential wall in a line which is parallel with the common axis of the tubes; and a. handle member for rotating the inner tube secured to one end of that tube to bring any selected slot therein into registration with the corresponding slot in the outer tube to the exclusion of all the other slots, said handle having markings for the individual first-named slots to determine their registration ositions.

2. An nking evce, comprising a relaand insuring vrapid venv tilation of the container.

tively-stationaryouter tube Whereon-a printing roller `is adapted t0 be mounted-axially, a rotatable inner tube fitting conceiitrieally Withinfthev Outer tube g-saidtinner tube having circumferential Wall in successively-offset relation to one fanotherfgand said outerv tube having a corresponding series of longitudinal slots ofi the 'samealengthva's the first-Vv named slots formed in its circumferential Wall insa line Which'is parallel with the coinmoniaxis ofthetubesga filling' extension on one end of the outertube for permitting the introd-uctionof inl; into the innertube; and aliandlesecured to the end of the inner' tube remote fromv saidl extension, to rotate said inner tube so as to bring any selected slot thereinA i intoA responding slot in the outer tube "t0 the eXy clusi'on of all the other slots. lsaid handle having;` rinarkings l for named slots to determine their registration positions.

3. An' inking device,-coniprising a relawr tively-stationaryouter tube Whereona print-A ing roller-is adapted` to be mounted axially; a rotatable inner tube -ittinfg concentrically Within the outertube; said inner.l tube having kregistration with the cor-y tlie individual iirst-f4 .a serieso'f longitudinal slots ffoi'nied in `its* circumferential lWall in successively-ofiiset re- Y.lation'to one another and also having' an air Y l ,Ventin said Wallfand said. a series oi" longitudinal lslots lformed in its..

ing. a corresponding series or"VV longitudinal slots of the same length as the irst-named Yslots formed -i nfitel .circumferential =Wallin a v line which is parallel with the common axis of the tubes-rand alsof-having a.vent=-in said Wall oic the same size as the first-named Vent; and handle member to rotate the inner tube 'and thereby bring any selected slot therein into registration withy the corresponding slot in the outertube Vto `the eX- outer tube .ha-vf,

clusion. oat all the other slotszand of lthe Vents,

or alternativelyl bring the two lVents into .registrationto the exclusion of all the slots,

said ,liandlevliaving markings for the'indi-- i vidual first-named slots, and for the iirst-y named Ventto indicate the registration posi-;

tions thereof.

V4. An ink'ing device, according-to claim 2,--

in Whichthe iillingv extension is provided withcathreaded lclosureliavng anl air; Opern ing therein and a Spring Glosuremember for; Suche. Opening, f,

` i l"in testimony .Wliereoll aliixgmysignature. :s

LON'LOUIS LIEVIENS. 'i 

